Feature #5123: ACSI service for link supervision on application level - IEC 61850 User Feedback Task Force - UCAIug Issue Tracking System

Feature #5123

ACSI service for link supervision on application level

Added by Andreas Ostermeier about 3 years ago. Updated over 1 year ago.

Status:

Resolved

Priority:

Normal

Assignee:

Andreas Ostermeier

Category:

Standard extension required

Start date:

11/22/2021

Due date:

02/11/2022 (over 2 years late)

% Done:

Estimated time:

ID:

Source:

TF 61850-80-6

TF Unique ID:

2 # 80-6

WG10 Proposal:

Estimated Completion:

Discuss in Upcoming Meeting:

To discuss in WG10:

Short Proposal:

90-28 to cover the issue

Standard(s):

IEC 61850-90-28

Needs More Information:

Assigned TF:

Description

Link supervision is currently not defined as an ACSI service, but mentioned in the mapping documents

8-1 defines TCP-Keepalive shall be used for link supervision
8-2 defines XMPP Ping for link supervision
9-2 defines Goose TTL for link supervision

TCP-Keepalive as defined in 8-2 alone might not be sufficient in some scenarios.
It will just proof that the Ethernet Stack of the IED is still alive, but doesn't give any clue on the status of the higher protocol levels or the application itself.
Therefore

Proposal descriptions

TF Communication Supervision (90-28) is defining LTPA logical node to supervise two-party associations covering this issue.

Updated by Andreas Ostermeier about 3 years ago

TF Unique ID set to 2

Updated by Vladan Cvejic about 3 years ago

Discuss in Upcoming Meeting changed from No to Yes

Updated by Vladan Cvejic about 3 years ago

Status changed from New to Feedback
Standard(s) set to IEC 61850-7-2, 8-1, 8-2

Indicate why having such ACSI service supervision should solve the problem. A Client today already can send periodically supported service to monitor application to application communication. Verify which comm. architecture involving WAN could interfere with the TCP KEEPALIVE usage in the server to discover that the client has gone.

Updated by Thierry Dufaure about 3 years ago

Andreas Ostermeier wrote:

Link supervision is currently not defined as an ACSI service, but mentioned in the mapping documents

8-1 defines TCP-Keepalive shall be used for link supervision
8-2 defines XMPP Ping for link supervision
8-1 defines Goose TTL for link supervision

TCP-Keepalive as defined in 8-1 alone might not be sufficient in some scenarios.
It will just proof that the Ethernet Stack of the IED is still alive, but doesn't give any clue on the status of the higher protocol levels or the application itself.
Therefore